Home / 123,336.69-170,237.52-69,653.13

Finding the Fourth Proportional to 123,336.69, 170,237.52 and 69,653.13

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Solution

The fourth proportional to 123,336.69, 170,237.52 and 69,653.13 is: 96,139.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,336.69 : 170,237.52 = 69,653.13 : x
  2. Step 2: Convert to fraction form
    123,336.69/170,237.52 = 69,653.13/x
  3. Step 3: Cross multiply
    123,336.69x = 170,237.52 × 69,653.13
  4. Step 4: Simplify right side
    123,336.69x = 11,857,576,111.44
  5. Step 5: Solve for x
    x = 11,857,576,111.44/123,336.69
  6. Step 6: Final answer
    x = 96,139.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.